DE378182C - Cinematograph drive - Google Patents
Cinematograph driveInfo
- Publication number
- DE378182C DE378182C DEA38429D DEA0038429D DE378182C DE 378182 C DE378182 C DE 378182C DE A38429 D DEA38429 D DE A38429D DE A0038429 D DEA0038429 D DE A0038429D DE 378182 C DE378182 C DE 378182C
- Authority
- DE
- Germany
- Prior art keywords
- drive
- shaft
- film
- pulley
- belt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/32—Details specially adapted for motion-picture projection
- G03B21/43—Driving mechanisms
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Cameras Including Film Mechanisms (AREA)
Description
Die Erfindung betrifft den Antrieb der Filmspulen an Kinematographenapparaten, bei denen die Spulen in bekannter Weise auf einer gemeinsamen Welle sitzen, und besteht darin, daß diese Welle gewissermaßen als Vorgelegewelle für den Antrieb des sonstigen Werkes dient. Ks kann jedoch der Antrieb auch so erfolgen, daß die Riemenscheibe der FiImspulenachse als Leitrolle für den Hauptantriebsriemen dient. Durch diese Anordnung ist die Gewähr gegeben, daß die Filmspulen während des Betriebes niemals stehenbleiben und der Film stets aufgewickelt wird. Gleichzeitig kann unter Wegfall des Motorantriebes die Filmspulenwelle als Antriebskurbelwelle I.enutzt werden, was zweifellos eine bedeutende Vereinfachung der Bauart darstellt, besonders bei gekapselten Werken. Die Mitnahme der Filmspuleii durch die Welle erfolgt in bekannter Weise durch Reibung, welche ι lurch das Gewicht der Filmspule geregelt wird.The invention relates to the drive of the film reels on cinematograph apparatus which the coils sit in a known manner on a common shaft, and consists in that this shaft as it were as a countershaft for the drive of the rest of the work serves. However, the drive can also take place in such a way that the belt pulley of the filament spool axis serves as a guide pulley for the main drive belt. This arrangement ensures that the film spools Never stand still during operation and the film is always wound up. Simultaneously The film spool shaft can be used as a drive crankshaft without the motor drive I. be used, which undoubtedly represents a significant simplification of the design, especially with encapsulated works. The film reel is taken along by the shaft in a known manner by friction, which is regulated by the weight of the film reel will.
Tn der beiliegenden Zeichnung ist der Gegenstand der Erfindung in einem Ausführungsbeispiel .schematisch dargestellt, und : zwar ist m die Motorriemenscheibe, α die Rie- τ menandruckrolle. .v Filmspulenantriebsscheibe, ä' Riemenscheibe des Werkes, / Filmspulen und k Handkurbel.In the accompanying drawing, the subject matter of the invention is shown schematically in an exemplary embodiment, namely : m is the motor belt pulley, α is the belt pressure roller. .v film reel drive pulley, ä 'pulley of the movement, / film reels and k hand crank.
Der Hauptantriebsriemen läuft vom Motor über die Riemenscheibe der Filmspulenwelle und wird durch eine Andrückrolle α geführt; diese Andrückrolle übernimmt auch gleich- ; zeitig die Längung und Kürzung des Riemens j bei der Hebung und Senkung des Schaltwer- !The main drive belt runs from the motor over the pulley on the film spool shaft and is guided by a pressure roller α; this pressure roller also takes over; early the lengthening and shortening of the belt j when raising and lowering the derailleur!
kes zum Zwecke der Bildverstellung. Weiter läuft der Riemen über die Antriebsscheibe des Schaltwerkes.kes for the purpose of image adjustment. The belt continues to run over the drive pulley of the rear derailleur.
Die Anordnung kann auch so getroffen sein, daß vom Motor aus der Antrieb der Filmspulenriemenscheibe und durch eine neben dieser angeordnete weitere Riemenscheibe der Antrieb des Fortschaltwerkes erfolgt. Auch kann der Motorantrieb als solcher wegfallen; die Andrückrolle ist dann zwischen der Riemenscheibe der Filmspulenwelle und der Riemenscheibe des FOrtschaltwerkes anzuordnen.The arrangement can also be made so that the drive of the film reel pulley from the motor and the drive of the indexing mechanism takes place through a further belt pulley arranged next to it. Even the motor drive as such can be omitted; the pressure roller is then between the pulley the film spool shaft and the pulley of the drive mechanism.
Das letztere gilt auch für den Fall 2.The latter also applies to case 2.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA38429D DE378182C (en) | Cinematograph drive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEA38429D DE378182C (en) | Cinematograph drive |
Publications (1)
Publication Number | Publication Date |
---|---|
DE378182C true DE378182C (en) | 1923-07-05 |
Family
ID=6930793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEA38429D Expired DE378182C (en) | Cinematograph drive |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE378182C (en) |
-
0
- DE DEA38429D patent/DE378182C/en not_active Expired
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